A truck is speeding up as it travels on an interstate. The truck's momentum (in kg · m/s) is proportional to the truck's speed (in m/s).At some moment the truck's momentum is 50600 kg · m/s and the truck's speed is 23 m/s. At this moment, the truck's momentum (in kg · m/s) is how many times as large as the truck's speed (in m/s)?IncorrectThis means that as the truck travels, the truck's momentum (in kg · m/s) is always Incorrect times as large as the truck's speed (in m/s).If the truck is traveling at 16 m/s, what is the truck's momentum?

Answer:

Explanation:

Speed = Distance/Time

Given

Distance = 200km

Total speed = 100+50 = 150km/hr

Time = Distance/Speed

Time = 200/150

Time = 1.33hr

b) Average speed in km/hr is 150km/hr

Convert to  m/s

150km/hr = 150 * 1000 m/1 * 3600s

150km/hr = 150,000/360

150km/hr = 416.67m/s

When a mass (m) that orbits the earth in a circular path of radius 7480 km (about 1100 km) above the surface of the earth), the period of revolution of the given satellite is approximately 8207 seconds or 2.28 hours.

The period of revolution of a satellite with mass (m) that orbits the earth in a circular path of radius 7480 km (about 1100 km) above the surface of the earth) can be determined by using Kepler's third law which relates the period of revolution of a satellite to the average radius of its orbit.

Kepler's third law states that the square of the period of revolution of a satellite is proportional to the cube of the average radius of its orbit.

Mathematically, the law can be expressed as: T² = (4π² / GM) × R³Where T is the period of revolution, G is the gravitational constant, M is the mass of the earth, and R is the average radius of the orbit of the satellite.

To find the period of revolution of the given satellite, we can substitute the given values in the equation: R = 7480 km + 6370 km = 13850 kmM = 5.97 × 10²⁴ kgG = 6.67 × 10⁻¹¹ Nm²/kg²T² = (4π² / GM) × R³T² = (4π² / (6.67 × 10⁻¹¹ × 5.97 × 10²⁴)) × (13850 × 10³)³T² = 6.7182 × 10¹⁴ seconds²

Taking the square root of both sides, we get:T = 8.2079 × 10³ seconds

Therefore, the period of revolution of the given satellite is approximately 8207 seconds or 2.28 hours.

For more such questions on period of revolution, click on:

https://brainly.com/question/23897864

#SPJ8

Answer:

Answer is 7.50 N

Explanation:

The average angular acceleration of the second hand is zero because the angular speed is constant. The angular speed is 360 degrees/hour.

The angular acceleration of a clock's minute hand on a clock is π1800rad/s

Angular acceleration means the time rate of change of angular velocity. The second hand of a clock involves an angular displacement of 2π per minute. Its angular speed is w = 2p/60s = 0.105/s. The direction of w is perpendicular to the face of the clock, directing to the face of the clock. The average angular acceleration of the second hand is zero.

Therefore, the correct answer is as given above

learn more about angular acceleration: https://brainly.com/question/21278452

#SPJ1

Try the solutions described in the attached picture, note the answers are marked with green colour.

The work done in stretching the spring from 50 cm to 80 cm is 67.5 J.

Hooke's law states that the force applied to an elastic material is directly proportional to its extension, provided its elastic limit is not exceeded.

To calculate the amount of work done by Hooke's law, first, we need to find the force constant of the spring.

Formula:

Where:

make k the subject of the equation

From the question,

Given:

Substitute these values into equation 2

Finally, To find the work done in stretching the spring from 50 cm to 80 cm, we use the formula below.

Where:

Also, From the question,

Given:

Substitute these values into equation 3

Hence, The work done in stretching the spring from 50 cm to 80 cm is 67.5 J.

Learn more about Hooke's law here: https://brainly.com/question/12253978

Answer:

Speed =distance/time.

=20/4

=5m/s.

Formula: s = d/t

s = speed

d = distance

t = time

Solve using the values we are given.

s = 20/4

s = 5m/s

best of Luck!

Answer:

A meteor

Explanation:

It travels so fast, that when it enters earth's atmosphere it burns up leaving that trail of fire which makes it look like a shooting star.

Answer:

meteor

Explanation:

Its right on edge 2021!

Answer:

The frictional torque is \(\tau = 0.2505 \ N \cdot m\)

Explanation:

From the question we are told that

   The mass attached to one end the string is \(m_1 = 0.341 \ kg\)

   The mass attached to the other end of the string is  \(m_2 = 0.625 \ kg\)

    The radius of the disk is  \(r = 9.00 \ cm = 0.09 \ m\)

At equilibrium the tension on the string due to the first mass is mathematically represented as

      \(T_1 = m_1 * g\)

substituting values

      \(T_1 = 0.341 * 9.8\)

      \(T_1 = 3.342 \ N\)

At equilibrium the tension on the string due to the  mass is mathematically represented as

      \(T_2 = m_2 * g\)

     \(T_2 = 0.625 * 9.8\)

      \(T_2 = 6.125 \ N\)

The  frictional torque that must be exerted is mathematically represented as

      \(\tau = (T_2 * r ) - (T_1 * r )\)

substituting values  

     \(\tau = ( 6.125 * 0.09 ) - (3.342 * 0.09 )\)

     \(\tau = 0.2505 \ N \cdot m\)

Answer:here to earn points

Explanation:

The answers are 1) The value of R2 is not relevant as it implies a downward force on the plank, 2) The reactions at C and D are 66.3 N and 90 N, respectively, and 3) The vertical force at B to lift the plank clear of D is 686.4 N. The reaction at C is zero, and the reaction at D is 61.4 kg.

For more questions on acceleration

https://brainly.com/question/460763

#SPJ8

☯ Distance is a scalar quantity and has only magnitude but no direction.

☯ Displacement is a vector quantity and has both magnitude and direction.

☯ Distance can only have +ve values whereas displacement can be +ve, -ve or even be zero.

1. The gravitational force between two objects decreases as the distance between them increases.

Gravitational force is the attraction between two objects that is produced by their masses.

2. The gravitational force between two objects increases as the mass of one of the objects increases.

3. A bar magnet with magnetic field lines looks like a line of arrows pointing from the North Pole to the South Pole.

4. The parts of an electromagnet are the core, the coil, and the electricity.

5. A solenoid is a coil of wire wrapped around a core, usually made of iron, that produces a magnetic field when electricity is passed through it.

6. Two ways to strengthen an electromagnet are to increase the number of coils in the solenoid and to increase the strength of the electric current.

7. When the electricity is turned off, the magnetic force in an electromagnet decreases.

8. To test the strength of an electromagnet, you can measure the amount of mass it produces when it is turned on.

9. Besides the amount of mass an electromagnet produces, you can also measure the strength by measuring the current and number of turns in the coil.

10. Electromagnetic induction is the production of an electric current when a magnetic field is changed.

11. When a permanent magnet is moved through a coil of wire attached to a circuit, it produces an electric current.

12. Ammeters and galvanometers measure electric current in a circuit.

13. They use the principle of electromagnetic induction to measure the electric current in a circuit.

14. The generator in a hydroelectric power plant (or any power plant) is used to convert mechanical energy from the turbine into electrical energy.

15. In an electric generator, mechanical energy is converted into electrical energy through electromagnetic induction.

16. When electric current flows into a simple electric motor, it causes a spinning magnet to move and generate motion.

17. In an electric motor, electrical energy is converted into mechanical energy through electromagnetic induction.

18. An electromagnet does not include a spinning magnet, while an electric motor does.

19. The energy source that produces light in a flashlight you have to crank is mechanical energy.

20. The device that uses a rotating coil of wire in a magnetic field to produce motion is an electric motor.

21. A transformer is a device that increases or decreases electrical energy.

To learn more about gravitational

https://brainly.com/question/27943482

#SPJ1

Answer:

180

Explanation:

1) E=F*L, where E - energy of the baseball, F - the required force, L - backward moving (0.35m);

2) E=mV²/2, where E - energy of the baseball, m - the mass of the baseball (0.14kg), V - the velocity of the baseball (30m/s).

3) if E=F*L and E=mV²/2, then F*L=mV²/2, from which

\(F=\frac{mV^2}{2L};\)

4) according to the last formula

\(F=\frac{0.14*900}{2*0.35}=\frac{126}{0.7}=180(N).\)

The force exerted by the ball on the glove is 180 Newtons.

In mechanics, a force is any action that has the potential to change, maintain, or deform a body's motion. The three principles of motion outlined by Isaac Newton in his Principia Mathematica are frequently used to illustrate the concept of force (1687).

Newton's first law states that a body at rest or moving uniformly in a straight line will stay in that state until a force is applied to it. According to the second law, a body will accelerate (change in velocity) in the direction of any external force acting on it.

Given:

A baseball (m = 140 g) traveling at 30 m/s moves a fielder's glove backward 35 cm when the ball is caught,

Calculate the value of force as shown below,

Force = m × V² / 2L

Force = 0.140 × 30² / 2 × 0.35

Force = 0.140 × 900 / 0.70

Force = 126 / 0.7

Force = 180 N

Thus, the force exerted by the ball is 180 Newtons.

To know more about Force:

https://brainly.com/question/13191643

#SPJ2

Answer:

HEY PLS LISTEN THERE IS A GUY GOING AROUND TELLING GIRLS TO JOIN HIS ZOOM ON BRAINLY AND MAKING ACCS AND STUFF TO MAKE PEOPLE JOIN HIS ZOOM.THE CODE IS 387 187 6280 HES A PEDXO AND TELLING GIRLS TO SHOW THERE BODIES TO HIM. SO PLEASE BE AWARE! COPY AND PASTE THIS TO SPREAD THE WORD!

Explanation:

HEY PLS LISTEN THERE IS A GUY GOING AROUND TELLING GIRLS TO JOIN HIS ZOOM ON BRAINLY AND MAKING ACCS AND STUFF TO MAKE PEOPLE JOIN HIS ZOOM.THE CODE IS 387 187 6280 HES A PEDXO AND TELLING GIRLS TO SHOW THERE BODIES TO HIM. SO PLEASE BE AWARE! COPY AND PASTE THIS TO SPREAD THE WORD!

Icecaps and Glaciers

Explanation:

Icecaps and Glaciers hold 68 percent of fresh water on earth :)

Answer:

PHYSICAL CHANGE

Explanation:

PLEASE DON'T JUST IGNORE IT

I HOPE I WILL GET A GOOD RESPONSE

Answer:

13.94 to 2 d.p

Explanation:

just add them all up and i am confused the ones you said or the ones listed ?

the one i did was the listed ones

Answer:

736.2

Explanation:

Work = mass * gravity * height

W = m * g * h

W = 6.26 * 9.8 * 12

W= 736.176 Joules

Rounding to 736.2.

Answer:

metamorphic rocks

Explanation:

I hope this helps you, I'm sorry if it's wrong!

If it's right please don't forget to mark me as brainliest!

Answer:

the top layers

Explanation:

sedimentary layers are deposited on top of each other over time

(a) The object moves with uniform velocity from A to B.

(b) The object moves with constant velocity from B to C.

(c) The object moves with increasing velocity from C to D.

V(A to B) = (6 - 0)/(4 - 0) = 1.5 m/s

V(B to C) = (6 - 6)/(11 - 4) = 0 m/s

V(C to D) = (7 - 6)/(12 - 11) = 1 m/s

final velocity = 1 + 1.5 m/s = 2.5 m/s

Thus, we can conclude the following;

The object moves with uniform velocity from A to B.

The object moves with constant velocity from B to C.

The object moves with increasing velocity from C to D.

Learn more about velocity here: https://brainly.com/question/6504879

#SPJ1

Answer:The object moves with

positive accelaration

from A to B. It

speeds up

from B to C. It moves with

constant velocity

from C to D.

Explanation:I took the test

Frequency=  30 Hz, Period= 0.0333 s, Wave Number=15.708 rad/m, Wave Function= y(x, t) = 0.05 sin(15.708x - 94.248t), Transverse displacement= -0.013 m, Time= 0.297 s.

(a) To find the frequency (f), we can use the equation: wave speed = frequency x wavelength. Rearranging this equation, we get:

frequency = wave speed / wavelength

Substituting the given values, we get:

frequency = 12 m/s / 0.4 m = 30 Hz

Therefore, the frequency of the wave is 30 Hz.

To find the period (T), we can use the equation:

period = 1 / frequency

Substituting the frequency value we just calculated, we get:

period = 1 / 30 Hz = 0.0333... s (rounded to four decimal places)

Therefore, the period of the wave is approximately 0.0333 s.

To find the wave number (k), we can use the equation:

wave number = 2π / wavelength

Substituting the given values, we get:

wave number = 2π / 0.4 m = 15.708 rad/m (rounded to three decimal places)

Therefore, the wave number of the wave is approximately 15.708 rad/m.

(b) The wave function for a transverse wave on a string is given by:

y(x, t) = A sin(kx - ωt + φ)

where A is the amplitude, k is the wave number, x is the position of the point on the string, t is the time, ω is the angular frequency, and φ is the phase constant.

We already know the values of A, k, and ω from the previous calculations. To find φ, we can use the given initial condition: "at t = 0 end of the string has zero displacement and is moving upward". This means that y(0,0) = 0 and ∂y/∂t(0,0) > 0. Substituting these conditions into the wave function, we get:

0 = A sin(0 + φ)

∂y/∂t = -Aω cos(0 + φ)

Since sin(0 + φ) = sin(φ) = 0 (because sin(0) = 0), we get:

φ = nπ, where n is an integer

Since cos(0 + φ) = cos(φ) = 1 (because cos(0) = 1) and ∂y/∂t(0,0) > 0, we get:

n = 0 or 2

Therefore, the possible values of φ are 0 or 2π.

Substituting the values of A, k, ω, and φ, we get:

y(x, t) = 0.05 sin(15.708x - 94.248t)

Therefore, the wave function describing the wave is:

y(x, t) = 0.05 sin(15.708x - 94.248t)

(c) To find the transverse displacement of a wave at x = 0.25 m and t = 0.15 s, we can use the wave function we just found:

y(0.25, 0.15) = 0.05 sin(15.708(0.25) - 94.248(0.15))

y(0.25, 0.15) ≈ -0.013 m (rounded to three decimal places)

Therefore, the transverse displacement of the wave at x = 0.25 m and t = 0.15 s is approximately -0.013 m.

(d) To find how much time must elapse from the instant in part (c) until the point at x = 0.25 m has zero displacement,

From part (c), we know that the transverse displacement of the wave at x = 0.25 m and t = 0.15 s is approximately -0.013 m. We need to find the time it takes for this point to return to zero displacement.

We can use the wave function we found in part (b) and set y(0.25, t) = 0:

0 = 0.05 sin(15.708(0.25) - 94.248t)

Since sin(θ) = 0 when θ = nπ (where n is an integer), we get:

15.708(0.25) - 94.248t = nπ

Solving for t, we get:

t = (15.708(0.25) - nπ) / 94.248

To find the smallest positive value of t that satisfies this equation, we need to use the smallest positive value of n that makes the right-hand side of the equation positive (because we want to find the time it takes for the point at x = 0.25 m to return to zero displacement, which happens after the point has completed a full cycle). We can see from the equation that n must be an even integer to make the right-hand side positive. The smallest even integer greater than zero is 2. Substituting n = 2, we get:

t = (15.708(0.25) - 2π) / 94.248

t ≈ 0.297 s (rounded to three decimal places)

Therefore, the time it takes for the point at x = 0.25 m to return to zero displacement is approximately 0.297 s.

Know more about displacement here:

https://brainly.com/question/30087445

#SPJ1

In order to measure the angle of incidence and the angle of refraction using Tracker's protractor tool (the green angle in the video frame), the following steps should be followed:

Step 1: Open the video in Tracker software.

Step 2: Click on the "Measure" button on the toolbar at the top of the software.

Step 3: From the dropdown menu, select "Angle".

Step 4: Click on the "protractor tool" icon (the green angle in the video frame).

Step 5: Position the vertex of the protractor exactly at the origin of the coordinate axis and move the arms of the protractor so that one arm is on the vertical axis (above or below, as appropriate) and the other on the light ray.

Step 6: Measure the angle of incidence and the angle of refraction for the frame numbers specified in the table below by using the step buttons on the right to advance the video a frame at a time.

Step 7: Record the measured angles in the table below. Note that the angle of incidence should be measured on the incident ray (the ray that is coming from the left), and the angle of refraction should be measured on the refracted ray (the ray that is coming from the right).In conclusion, by following these steps, one can measure the angle of incidence and the angle of refraction using Tracker's protractor tool.

For more question Tracker’s protractor tool.

https://brainly.com/question/16772121

#SPJ8

Explanation:

what is this language? ..............

Look up "Everything You Need To Know About Math In One Big Fat Notebook pdf." It's the best thing I've ever been given, I have it with me in math class all the time and I've aced every test. I have it with me right now and it has everything I've ever been taught about math in it so it might help you.

As temperature increases, molecules of liquid become more active and they move more rapidly.

The spring constant of the branch satisfying Hooke's law is 1,658.46 N/m.

The given parameters;

The spring constant of the branch satisfying Hooke's law is calculated as follows;

F = kx

mg = kx

\(k = \frac{mg}{x} \\\\k = \frac{22 \times 9.8}{0.13} \\\\k = 1658.46 \ N/m\)

Thus, the spring constant of the branch is 1,658.46 N/m.

Learn more here:https://brainly.com/question/4404276